Neo only has time for one
Some neighbors and even the owners were beginning to see Neo as a typical heavy dog. It was clear that this was how Neo saw them too. He only had time for one person in his life. Everything else was a distraction or a threat to that relationship.
A dog with a temper
When someone had a show of affection with his owner, Neo would get very jealous. On a good day, he would simply try to regain his owner’s affection, but on a bad day, he would growl at the stranger and bare his teeth. Dogs can often be scary, but when Neo bared his teeth, there were few dogs that were as frightening as he was.